Analysis of molecular ligand functionalization process in nano-molecular electronic devices containing densely packed nano-particle functionalization shells.

Autor: Sher O; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden.; Department of Electrical Engineering, Mirpur University of Science and Technology, Mirpur Azad Jammu and Kashmir 10250, Pakistan., Han Y; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden., Xu H; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden.; School of Metallurgy, Northeastern University, Shenyang City, 110819, People's Republic of China., Li H; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden.; Shandong Technology Centre of Nanodevices and Integration, School of Microelectronics, Shandong University, Jinan 250101, People's Republic of China., Daun T; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden., Kumar S; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden., Grigoriev A; Condensed Matter Theory, Department of Physics and Astronomy, Uppsala University, PO Box 516, Uppsala SE-75120, Sweden., Panda PK; Condensed Matter Theory, Department of Physics and Astronomy, Uppsala University, PO Box 516, Uppsala SE-75120, Sweden., Orthaber A; Department of Chemistry, Ångström Laboratory, Uppsala University, PO Box 523, Uppsala SE-75120, Sweden., Serein-Spirau F; Université de Montpellier, Institut Charles Gerhardt de Montpellier, UMR CNRS 5253, Ecole Nationale Supérieure de Chimie de Montpellier, 1919 route de Mende, F-34000 Montpellier, France., Jarrosson T; Université de Montpellier, Institut Charles Gerhardt de Montpellier, UMR CNRS 5253, Ecole Nationale Supérieure de Chimie de Montpellier, 1919 route de Mende, F-34000 Montpellier, France., Jafri SHM; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden.; Department of Electrical Engineering, Mirpur University of Science and Technology, Mirpur Azad Jammu and Kashmir 10250, Pakistan., Leifer K; Applied Materials Science, Department of Engineering Sciences, Uppsala University, PO Box 534, Uppsala SE-75121, Sweden.
Jazyk: angličtina
Zdroj: Nanotechnology [Nanotechnology] 2022 Apr 01; Vol. 33 (25). Date of Electronic Publication: 2022 Apr 01.
DOI: 10.1088/1361-6528/ac5cfc
Abstrakt: Molecular electronic devices based on few and single-molecules have the advantage that the electronic signature of the device is directly dependent on the electronic structure of the molecules as well as of the electrode-molecule junction. In this work, we use a two-step approach to synthesise functionalized nanomolecular electronic devices (nanoMoED). In first step we apply an organic solvent-based gold nanoparticle (AuNP) synthesis method to form either a 1-dodecanethiol or a mixed 1-dodecanethiol/ ω -tetraphenyl ether substituted 1-dodecanethiol ligand shell. The functionalization of these AuNPs is tuned in a second step by a ligand functionalization process where biphenyldithiol (BPDT) molecules are introduced as bridging ligands into the shell of the AuNPs. From subsequent structural analysis and electrical measurements, we could observe a successful molecular functionalization in nanoMoED devices as well as we could deduce that differences in electrical properties between two different device types are related to the differences in the molecular functionalization process for the two different AuNPs synthesized in first step. The same devices yielded successful NO 2 gas sensing. This opens the pathway for a simplified synthesis/fabrication of molecular electronic devices with application potential.
(Creative Commons Attribution license.)
Databáze: MEDLINE